Bachelorette party issues/rant

My two best friends have been planning a bachelorette party for me since December. According to my friend R my other friend B has been giving her numerous problems and arguing with any ideas that she brings up. R has even shown me text messages to give me an idea of how B has been speaking to her. In the past few months, I have also been having numerous problems out of my B myself. She has made snide remarks about my choice of dress, venue, not having a bridal party, and the small amount of people that I am inviting to the wedding. I have tried talking to B numerous times to try and figure out why all of the sudden she is acting this way toward me. We have been best friends since high school and have never had any issues until now. Every time I bring it up she blows up and accuses me of being selfish and says that nothing is wrong but that I am acting like a bridezilla and that I need to "evaluate my life" and that she can't believe that I'm getting married.continued in comments...